A simple, efficient and ecofriendly procedure for the synthesis of tetrahydrobenzo[b]pyran derivatives using triphenylphosphine as catalyst under aqueous conditions has been developed. This new method has some advantages like the easy experimental protocol, shorter reaction time, higher yields and is benign for the environment with using water as solvent.
Keywords: Aqueous medium, multicomponent reaction, one-pot synthesis, Tetrahydrobenzo[b]pyrans, triphenylphosphine